#define _CRT_SECURE_NO_WARNINGS
#include <vector>
#include <iostream>
using namespace std;
int main()
{
	vector<int> a = { 11,13,15,17,19 };
	vector<int> b = { 2, 4, 6, 8, 20 };
	int n = a.size();
	int left1 = 0, right1 = n - 1;
	int left2 = 0, right2 = n - 1;
	return 0;
}